int var1 = 200; int numFrames = 2; int frame = 0; PImage[] icecream = new PImage[numFrames]; long timer; float framespeed = 300; boolean walk; int icecreamspeed = 3;

void setup () { size(700,700); icecream[0] = loadImage("character1.jpg"); icecream[1] = loadImage("character2.jpg");

timer = millis(); imageMode(CENTER); }

void draw() {

background(255); var1 ++; if(var1 == width) { var1 = 0;

}

if (millis() - timer > framespeed) { timer = millis(); frame ++; } if (frame == numFrames) { frame = 0; } if(walk == true) { image(icecream[frame], var1,400);

} }

void mouseClicked() { walk = true; image(icecream[frame], mouseX, 400);

}

void mouseReleased() { walk = false;

}

CODE REMOVED SEE NEXT COMMENT

 public boolean surfaceTouchEvent(MotionEvent event) {
                pointerCount = event.getPointerCount();
                if (pointerCount>2){
                  pointerCount = 2;
                }
                //println("Number of pointers: "+pointerCount);
                points.clear();
                for(int i=1; i<=pointerCount; i++) {

                points.add(new PVector(event.getX(i-1), event.getY(i-1)));
                }

                //if the event is a pressed gesture finishing, 
                // it means the lifting the last touch point
                if(event.getActionMasked() == MotionEvent.ACTION_UP) points.clear();

                // if you want the variables for motionX/motionY, mouseX/mouseY etc.
                // to work properly, you'll need to call super.surfaceTouchEvent().
                return super.surfaceTouchEvent(event);

              }      

Within the void draw(), i did this:

if (speedY>0){
        if (tempPoint.y>height/2){
         //extra code here
          rect (tempPoint.x, height-lineHeight, pongRadius*2, pongHeight*2);

          }  
        if (tempPoint.y<height/2){
          //extra code here
          rect (tempPoint.y, lineHeight, pongRadius*2, pongHeight*2);

        }
      }

      if (speedY<0){
        if (tempPoint.y<height/2){
          //extra code here
          rect (tempPoint.x, lineHeight, pongRadius*2, pongHeight*2);


        }  
        if (tempPoint.y>height/2){
          //extra code here
          rect (tempPoint.x, height-lineHeight, pongRadius*2, pongHeight*2);

        }
      }

     }

Basically, everything is working fine, and the 2 "pongs" or paddles move fine when they are 2 fingers holding down at both ends of the screen. However, the problem arises when one person decides to let go of the screen at the second person puts 2 fingers on their side of the screen, which results in the second person getting 2 paddles and the 1st person not able to get any. This is because i have set the limit of pointerCount to 2 in the code if (pointerCount>2){ pointerCount = 2; }.

Is it possible for me to have a maximum of 1 paddle (1 touch) in each side of the screen(so there will still be two touches in total), and if so, how?

Thanks in advance.

I understand that, functionally mousePressed is to activate something while the mouse is held down and mouseClicked activates something when the mouse is clicked and than release (with the actual action being on the release). The problem I'm having is that I have a program with a mousePressed that I want to change to a mouseClicked, and the two commands work very differently.

I've tried everything and can't get it to work.

Here is the Bit I want to change...

angle=atan2((ytarget-y[0]),(xtarget-x[0]))+dsteer;
if (mousePressed==true) angle=PI+angle; //reverse direction if mouse pressed

And the whole program for reference (there are several generations of notes in here so they probobly don't make a ton of sense)...

color start=color(0,0,0);
color finish;
float amt = 0.0;

//Array of Lines


Streak[] Streak;
int nStreaks = 1000; //number of streaks

void setup() {
   noCursor();
  fill(start);
  finish=color(random(255),random(255),random(255));
   background(0);
  size(screen.width,screen.height);
  smooth();
  frameRate(60);
  //initialize monters with random parameters
  Streak = new Streak[nStreaks];
  for(int i=0; i<nStreaks; i++){
    Streak[i] = new Streak(random(1,1),random(10000,1),random(10000,10000),random(1,100000));

 //way streaks act ^^^^^^^^^^Speed?^^^^^^^^^^^^^^^^^^^^^^Straintess?^^^^^^^^^^^^^^^^^

  }
}

void draw() {
  for(int i=0; i<nStreaks; i++){
    Streak[i].update();
    Streak[i].draw();
  }
} 

class Streak {
  float xtarget; //x position of target
  float ytarget;
  float dtarget; //randomness for target
  float dmove; //randomness for movement
  float speed; //pixels per second 
  int diam=1 ; //diameter of line///////VARIABLE////////
  int nlinks=2; //number of links
  float[] x= new float[nlinks]; //x coordinates of streak
  float[] y= new float[nlinks];
  float dsteer; //steering offset in radians
  float angle;  //angle that streak is moving

  Streak(float _speed, float _dmove, float _dtarget, float _dsteer) {
    //randomize initial location 
    x[0]=random(0,width);
    y[0]=random(0,height); 
    for(int i=0; i<nlinks; i++){
      x[i]=x[0];
      y[i]=y[0];
     }
    speed=_speed;
    dmove=_dmove;
    dtarget=_dtarget;
    dsteer=_dsteer;
  }

  void update() {
    //find target, add some randomness
    xtarget=width/2;
    ytarget=height/2;   
    //move each body position up one
    for(int i=nlinks-1; i>0; i--){
      x[i]=x[i-1];
      y[i]=y[i-1];
    }

    //get angle to target
    angle=atan2((ytarget-y[0]),(xtarget-x[0]))+dsteer;
    if (mousePressed==true) angle=PI+angle; //reverse direction if mouse pressed

    //update position of head
    x[0]+=speed*cos(angle);
    y[0]+=speed*sin(angle);

    //keep within bounds
    if (x[0]>width) x[0]=width;
    if (x[0]<0) x[0]=0;
    if (y[0]>height) y[0]=height;
    if (y[0]<0) y[0]=0;     
  }

  //draw streak  
  void draw() {

   amt+=.00001;
  if (amt >=1) {
   amt = 0.0;
  start = finish;
 finish = color(random(255),random(255),random(255));
  } stroke(lerpColor(start,finish,amt));
    fill(lerpColor(start,finish,amt));
    for(int i=0; i<nlinks; i++){
      ellipse(x[i],y[i],diam,diam);
    }

  }
}

I wrote a code where I create flowers by mouse-click and every third flower is decreasing an augmenting pollution cloud. The code works fine. Now I would like to save how many flowers were created during the game and export the data in an excel or text-file. Could you give me a hide how to do that. Here is my code for the flower function. Thank you.

class Plant {

  float x;
  float y;

  Plant() {
    x = mouseX;
    y = mouseY;

  }

  void display() {
  image(plantita,x,y);
  }
}
 ––––––––––––––––––––––––––––––––––––––––––––––––––

ArrayList plants; // array for plantas
int iP= 0; // iterator plantas

//quantify plants
boolean augment_plant = false;  
int counter_plants = 0;

  boolean plantation() 
  {
   for ( iP = 0; iP < plants.size(); iP++ ) 
      { 
    Plant a = (Plant) plants.get(iP);
    a.display();
      }
  if (mousePressed && (mouseButton == LEFT))
    {
    plants.add(new Plant());
    counter_plants = counter_plants + 1;
    if (counter_plants == 3)
      {
         augment_plant = true;
         counter_plants = 0;
      }
    else 
      {
      augment_plant = false;
      }

     }
    println(augment_plant);
    return augment_plant;
   }

I need some advice about how I can delete an image with the command mousePress. In my code I first create an illustration by clicking with the mouse cursor on the screen. Later I would like to delete it again by clicking again on the object on the screen. Since I didn't find another solution, I programmed that by drawing a rectangle with the same color as the background, the image disappear. Probably there are many better ways how to delete the image.

Thank you!

 void mousePressed(){
            if (mousePressed && (mouseButton == LEFT)) { 
          //Draw the image to the screen at coordinates where clicked
          image(plant,mouseX,mouseY);
          }
          else if (mousePressed && (mouseButton == RIGHT)){
          //overdraws the image to the screen at coordinates where clicked
          fill(#BCFCA1);
          noStroke();
          rect(mouseX,mouseY,120,100);
          }
            // update the screen (run draw once)
          redraw();
        }

I have problem just like in the topic. It looks like mouse position was wrong ! And my primitive code.

void setup() { size(500,500,JAVA2D); background(0); }

void draw() { ellipse(mouseX, mouseY, 80, 80); }

here's the link of the example http://processing.org/examples/mousefunctions.html

best, Filippo

void draw() {
  int x = int(random(0, 600));
  int y = int(random(0, 600));

  checkCircles();

  for (int i = 0; i < 100;i++) {
    x = int(random(0, 600));
    y = int(random(0, 600));
    fill(#8c0e10);
    ellipse(x, y, circle, circle);
    circleOutput.println(x+"\t"+y);
  }
}

void checkCircles() {
  String[] circles = loadStrings("circleData.tsv");
  for (int i = 0; i<circles.length;i++) {
    String[] row = split(circles[i], "\t");
    if (int(row[0]) == mouseX && int(row[1]) == mouseY) {
      stroke(255);
      fill(#8c0e10);
      ellipse(int(row[0]), int(row[1]), 30, 30);
      noStroke();
    }
  }
}
]

But this obviously leaves the mouseHover circles behind so I'm just constantly drawing new circles. It gets covered eventually by the constantly drawn circles in the draw function, but I want them to disappear immediately. Any ideas would be greatly appreciated.